You're totally correct. I keep them for the moment due to "suddenly the container doesn't respond but I don't know if it's the container, traefik or my computer". Once I'm sure everything is running smoothly, I will remove all of them except traefik ones.
But I still have issues(like this one: 400 Bad Request The plain HTTP request was sent to HTTPS port ) where I cannot access the container through traefik.
thanks for your help anyway, I really owe you a bunch of coffee once I finished configuring all this.